The Hardest Punchers in Boxing from 135 Pounds to Unlimited

I am only listing five, from lightweight to heavyweight, based on boxing's original eight weight classes. And I am only mentioning fighters that I have witnessed on live television or in-person, to avoid the inevitable hate mail and comments that readers are bound to send in response to my totally subjective list.

My criteria is based largely on the boxer's "true knockout" percentage in all of his fights (at least 40). In case you were wondering, a true knockout is one where the victim does not beat the 10-count.

And without further ado, I announce the "five hardest-hitting men, from 135 pounds to unlimited, that I have ever seen in living color," including some vintage YouTube footage to scramble your brain cells.